CVE-2025-10838

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-10838
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md Exploit Third Party Advisory
https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md#poc Exploit Third Party Advisory
https://vuldb.com/?ctiid.325200 Permissions Required VDB Entry
https://vuldb.com/?id.325200 Third Party Advisory VDB Entry
https://vuldb.com/?submit.657126 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*
History

03 Oct 2025, 15:09

Type Values Removed Values Added
References () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md - () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md - Exploit, Third Party Advisory
References () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md#poc - () https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md#poc - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.325200 - () https://vuldb.com/?ctiid.325200 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.325200 - () https://vuldb.com/?id.325200 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.657126 - () https://vuldb.com/?submit.657126 - Third Party Advisory, VDB Entry
References () https://www.tenda.com.cn/ - () https://www.tenda.com.cn/ - Product
CPE cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*
First Time Tenda ac21
Tenda
Tenda ac21 Firmware

23 Sep 2025, 05:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-23 05:15

Updated : 2025-10-03 15:09

NVD link : CVE-2025-10838

Mitre link : CVE-2025-10838

CVE.ORG link : CVE-2025-10838

JSON object : View

Products Affected

tenda

  • ac21_firmware
  • ac21
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')